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Homogenization of the Dense Composite Membranes for Carbon Dioxide Separation

机译：用于二氧化碳分离的致密复合膜的均匀化

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A possible approach to the carbon dioxide removal from flue gases is application of the dense composite membrane (matrix: polymer material; dispersed phase: zeolite powder). This type of membrane is based on a solution-diffusion mechanism. Carbon dioxide is dissolved in the membrane bulk, and then diffuses to the permeate side. A successful membrane should have high permeability of the carbon dioxide and low permeability for all other gasses commonly present in the combustion process (oxygen, nitrogen, hydrogen…). The main challenge is to provide good contact between long and usually hydrophobic polymer chains and relatively small, but electrically charged, zeolite particles. Two different polymers and four different zeolites were tested for this purpose. As the polymer bulk material, different co-polymers of ethylene-oxide and phthalimide were used. Five different zeolite powders in combination with two different potential additives were tested.
机译：从烟气中去除二氧化碳的一种可能方法是应用致密复合膜（基质：聚合物材料；分散相：沸石粉）。这种膜基于溶液扩散机制。二氧化碳溶解在膜体中，然后扩散到渗透侧。一个成功的膜应该具有二氧化碳的高渗透性和燃烧过程中常见的所有其他气体（氧、氮、氢…）的低渗透性。主要的挑战是在长且通常疏水的聚合物链和相对较小但带电的沸石颗粒之间提供良好的接触。为此，对两种不同的聚合物和四种不同的沸石进行了测试。作为聚合物本体材料，使用了环氧乙烷和邻苯二甲酰亚胺的不同共聚合物。测试了五种不同的沸石粉和两种不同的潜在添加剂。

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